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Re: Exporting from Cocoa (no audio?)
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Re: Exporting from Cocoa (no audio?)



At 1:12 PM +0200 6/3/06, Falko wrote:
I'm using QTKit in my Cocoa app to display a quicktime movie and am trying to
export the movie using "ConvertMovieToFile" and "showUserSettingsDialog" as flags.
I get the movie from the QTMovieView using [movView quickTimeMovie], but sometimes,
this movie doesn't contain any audio data...


At least ConvertMovieToFile can't find any audio data in the movie, while it is
correctly played back (with sound) in the QTKit view.
What could cause this behavior? The file that can't be exported is a .mpg file,
could that be the reason for the problem? Is there any work-around?


Other .mov files can be exported without problems...

Exporting the .mpg with audio using the QTKit routines worked, but I'd like to display a settings
dialog from the save panel, which is why I prefer ConvertMovieToFile.


Thanks in advance
Falko

QuickTime does not currently export audio data from MPEG-1 and MPEG-2 tracks. It's a known issue that we hope to address in a future release.


Daniel Steinberg
QuickTime Engineering
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 >Exporting from Cocoa (no audio?) (From: Falko <email@hidden>)



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